201223113001 has 4 divisors (see below), whose sum is σ = 201231864772. Its totient is φ = 201214361232.

The previous prime is 201223112999. The next prime is 201223113011. The reversal of 201223113001 is 100311322102.

201223113001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 186883290000 + 14339823001 = 432300^2 + 119749^2 .

It is a cyclic number.

It is not a de Polignac number, because 201223113001 - 2¹ = 201223112999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201223113011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4341306 + ... + 4387411.

It is an arithmetic number, because the mean of its divisors is an integer number (50307966193).

Almost surely, 2^201223113001 is an apocalyptic number.

It is an amenable number.

201223113001 is a deficient number, since it is larger than the sum of its proper divisors (8751771).

201223113001 is an equidigital number, since it uses as much as digits as its factorization.

201223113001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8751770.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 201223113001 its reverse (100311322102), we get a palindrome (301534435103).

The spelling of 201223113001 in words is "two hundred one billion, two hundred twenty-three million, one hundred thirteen thousand, one".